CN219843047U - Cooling assembly and vehicle - Google Patents

Abstract

The utility model discloses a cooling assembly and a vehicle. The cooling assembly comprises a power battery, an expansion kettle and an overflow kettle, wherein the power battery comprises a cooling plate, the expansion kettle is connected with the cooling plate through a first pipeline, the expansion kettle is used for receiving cooling liquid overflowed from the cooling plate, the overflow kettle is connected with the expansion kettle through a second pipeline, and the overflow kettle is used for receiving cooling liquid overflowed from the expansion kettle. According to the cooling assembly, the overflow kettle is used for receiving the cooling liquid overflowed from the expansion kettle, so that the overflow of the cooling liquid from the expansion kettle to other positions of a vehicle can be reduced or even avoided, the damage to parts such as a high-low pressure loop of the vehicle is reduced, and the safety of the vehicle is improved.

Description

Cooling assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a cooling assembly and a vehicle.

Background

In electric equipment such as electric automobiles, a battery is used as an energy source of the electric equipment to provide power for the electric equipment. During the charge and discharge of the battery, the battery cells of the battery easily generate heat. To dissipate heat from the battery, the battery is typically attached to a cooling plate. Cooling liquid can be introduced into the flow channels of the cooling plates so as to take away the heat of the battery. However, in the use process of the battery cell, the volume of the battery cell gradually expands and generates permanent deformation, so that the liquid cooling plate is extruded, the flow passage volume of the cooling plate is reduced, and the cooling liquid in the rectifying cooling flow passage flows into the expansion kettle. When the expansion tank is filled, leakage of the cooling liquid can occur, and the vehicle can be damaged.

Disclosure of Invention

The utility model provides a cooling assembly and a vehicle.

The cooling assembly comprises a power battery, an expansion kettle and an overflow kettle, wherein the power battery comprises a cooling plate, the expansion kettle is connected with the cooling plate through a first pipeline and is used for receiving cooling liquid overflowed from the cooling plate, the overflow kettle is connected with the expansion kettle through a second pipeline, and the overflow kettle is used for receiving cooling liquid overflowed from the expansion kettle.

According to the cooling assembly, the overflow kettle is used for receiving the cooling liquid overflowed from the expansion kettle, so that the overflow of the cooling liquid from the expansion kettle to other positions of a vehicle can be reduced or even avoided, the damage to parts such as a high-low pressure loop of the vehicle is reduced, and the safety of the vehicle is improved.

In certain embodiments, the overflow jug is configured to be disposed at a right front wheel of the vehicle.

Generally, the cooling assembly is arranged at the head part of the vehicle, and the right front wheel of the vehicle is provided with a larger accommodating space, so that the overflow kettle is arranged at the right front wheel of the vehicle, and other structures of the vehicle can be omitted, thereby the overall structure of the vehicle is more compact.

In certain embodiments, the overflow jug is disposed at a height that is less than the expansion jug.

Thus, the arrangement height of the overflow kettle is lower than that of the expansion kettle, and the cooling liquid in the expansion kettle easily flows to the overflow kettle at the lower position from the higher position.

In some embodiments, the cooling plate includes a plurality of flow channel groups, the plurality of flow channel groups being arranged in parallel in sequence, each flow channel group including a plurality of flow channels, the cooling liquid flow directions in the flow channels being the same.

Therefore, the number of the flow channel groups and the number of the flow channels of the cooling plate are large, and more cooling liquid can be contained, so that the cooling capacity of the cooling plate is improved.

In some embodiments, adjacent two flow channel groups are connected end to end by a converging channel. In this way, the cooling liquid of each flow passage of the upper flow passage group flows to each flow passage of the lower flow passage group after the converging passages are converged, so that the flow rate of each flow passage of the lower flow passage group is not affected by the upper flow passage 13.

In certain embodiments, the cooling assembly comprises a heat sink connected between the expansion tank and the cooling plate.

The radiator takes away the heat of the cooling liquid in the cooling plate, and the redundant cooling liquid flows into the expansion kettle after heat dissipation.

In certain embodiments, the power cell has a capacity greater than 100kwh.

Under the condition that the capacity of the power battery is larger than 100kwh, the capacity of the power battery is larger, and the heat generated in the charging and discharging processes of the power battery is also larger, so that the heat dissipation requirement of the power battery is large, more cooling liquid is needed, at the moment, when the capacity of the expansion kettle is fixed, the cooling liquid flows back into the expansion kettle due to deformation of the cooling plate, and then the cooling liquid of the expansion kettle is easy to overflow, and therefore the overflow kettle can receive the overflow cooling liquid of the expansion kettle.

In some embodiments, the power battery further includes a battery module connected with the cooling plate. Therefore, the cooling liquid in the flow channel of the cooling plate takes away the heat generated in the charging and discharging process of the battery module.

In some embodiments, the number of the battery modules is plural, and the cooling plate is disposed between two adjacent battery modules. Therefore, the two sides of the cooling plate can radiate heat of the battery module, and the utilization rate of the cooling plate can be improved. In addition, the plurality of battery modules may increase the capacity of the power battery.

The vehicle of the embodiment of the utility model comprises the cooling assembly.

Therefore, the vehicle utilizes the overflow kettle to receive the cooling liquid overflowed from the expansion kettle, so that the cooling liquid can be reduced or even prevented from overflowing from the expansion kettle to other positions of the vehicle, the damage to parts such as a high-low pressure loop of the vehicle is reduced, and the safety of the vehicle is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic view of a cooling module according to an embodiment of the present utility model.

FIG. 2 is a partial schematic view of a cooling assembly according to an embodiment of the present utility model.

FIG. 3 is a partial schematic view of a cooling assembly according to an embodiment of the present utility model.

Fig. 4 is a schematic structural view of a power cell according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a vehicle according to an embodiment of the present utility model.

Reference numerals illustrate: 100. a cooling assembly; 10. a power battery; 20. an expansion kettle; 30. an overflow kettle; 40. a heat sink; 11. a cooling plate; 12. a flow channel group; 13. a flow passage; 14. a confluence channel; 15. a battery module; 51. a first pipe; 52. a second pipe; 1000. a vehicle.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1, a cooling assembly 100 according to an embodiment of the present utility model includes a power battery 10, an expansion kettle 20, and an overflow kettle 30, wherein the power battery 10 includes a cooling plate 11, the expansion kettle 20 is connected to the cooling plate 11 through a first pipe 51, the expansion kettle 20 is used for receiving a coolant overflowed from the cooling plate 11, the overflow kettle 30 is connected to the expansion kettle 20 through a second pipe 52, and the overflow kettle 30 is used for receiving a coolant overflowed from the expansion kettle 20.

The cooling assembly 100 of the embodiment of the utility model utilizes the overflow kettle 30 to receive the cooling liquid overflowed from the expansion kettle 20, thereby reducing or even avoiding the overflow of the cooling liquid from the expansion kettle 20 to other positions of the vehicle 1000, reducing the damage to parts such as a high-pressure circuit and a low-pressure circuit of the vehicle 1000, and improving the safety of the vehicle 1000.

Specifically, the power cell 10 may power a vehicle such as the vehicle 1000. The power battery 10 may be a battery structure formed by parallel or serial packaging of a plurality of battery cells, and the battery cells may be battery cells such as lithium ion batteries, carbonate batteries, lead acid batteries and the like. The expansion tank 20 may be made of a transparent material to facilitate the inspection of the liquid level. For example, the tank body of the expansion kettle 20 can be injection molded by PP or PE materials, and the thickness can be 3.5mm. The cooling liquid can absorb a large amount of heat generated during the operation of the power battery 10 and then generate a large amount of steam, and the expansion kettle 20 can be used for receiving and replenishing the cooling liquid in the cooling plate during the operation of the power battery 10 and also can absorb the steam in the cooling plate during the operation of the power battery 10.

The cooling plate 11 may be a device that exchanges heat by a cooling liquid. The cooling plate 11 may exchange heat with other structures of the power cell 10, thereby reducing the temperature of the object. The cooling plate 11 may be a plate-like structure having a certain thickness, and the thickness of the cooling plate 11 to which the power cell 10 is applied may be 15mm to 35mm. The power battery 10 expands after being charged and discharged for a plurality of times, so that the cooling plate 11 in the power battery 10 is pressed, the volume of the cooling plate 11 is reduced, and the cooling liquid flows back into the expansion kettle 20 through the first pipeline 51.

Since the expansion tank 20 is generally a standard component and in the platform design of the vehicle 1000, the specifications of the expansion tank 20 are generally kept unchanged, i.e. the volume of the expansion tank 20 is a fixed value. When the cooling liquid flows back into the expansion tank 20 and the liquid level of the expansion tank 20 is above the maximum liquid level, excess cooling liquid flows into the overflow tank 30 through the second pipe 52.

Referring to fig. 1 and 5, in some embodiments, overflow jug 30 is configured to be disposed at the right front wheel of vehicle 1000. Generally, the cooling assembly 100 is disposed at the head of the vehicle 1000, and the right front wheel of the vehicle 1000 has a larger accommodating space, so that the overflow jug 30 is disposed at the right front wheel of the vehicle 1000 without modifying other structures of the vehicle 1000, thereby making the overall structure of the vehicle 1000 more compact.

In certain embodiments, the placement height of the overflow jug 30 is less than the placement height of the expansion jug 20. In this way, the height of the overflow kettle 30 is lower than that of the expansion kettle 20, and the cooling liquid in the expansion kettle 20 easily flows from the high place to the overflow kettle 30 at the low place.

In one example, the expansion kettle 20 may include a water inlet and an overflow port, wherein the water inlet may be located at the bottom and connected with the cooling plate 11 through the first pipe 51 to provide cooling liquid for the cooling plate 11, and may also receive the cooling liquid overflowed from the cooling plate 11; the overflow may be located at the top and connected to the overflow pot 30 by a second conduit 52. The water inlet of the overflow kettle 30 can also be arranged at the top, and the overflow port of the expansion kettle 20 is higher than the water inlet of the overflow kettle 30, so that the cooling liquid in the overflow kettle 30 is prevented from flowing back into the expansion kettle 20.

Referring to fig. 4, in some embodiments, the cooling plate 11 includes a plurality of flow channel groups 12, and the plurality of flow channel groups 12 are arranged in parallel in sequence, each flow channel group 12 includes a plurality of flow channels 13, and the flow directions of the cooling liquid in the flow channels 13 are the same.

In this way, the number of the flow channel groups 12 and the number of the flow channels 13 of the cooling plate 11 are larger, and more cooling liquid can be contained, thereby improving the cooling capacity of the cooling plate 11.

Specifically, the cooling plate 11 may have 3 flow channel groups 12 therein, and each flow channel group 12 has 3 flow channels 13. The cross-sectional shape of the flow channel 13 may be a circular, quadrilateral, pentagonal, hexagonal, and other curved-sided shaped structure. The runner 13 may be made of a material having good thermal conductivity and being deformable under a certain pressure, such as an aluminum alloy material. The runner 13 may be extruded with the cooling plate 11 or may be realized by an embedded runner 13.

Referring to fig. 4, in some embodiments, adjacent two flow channel groups 12 are connected end to end by a converging channel 14. In this way, the coolant in each flow channel 13 of the previous flow channel group 12 flows to each flow channel 13 of the next flow channel group 12 after the converging channels 14 are converged, so that the flow rate of each flow channel 13 of the next flow channel group 12 is not affected by the previous flow channel 13.

Specifically, the outlet of the first flow channel group 12 and the inlet of the second flow channel group 12 form a converging channel 14 on the right, and the outlet of the second flow channel group 12 and the inlet of the third flow channel group 12 form a converging channel 14 on the left, so that the flow rate of the first flow channel group 12 flowing to the second flow channel group 12 after being extruded and deformed is prevented from being reduced, and the flow rate of the second flow channel group 12 flowing to the third flow channel group 12 after being extruded and deformed is also prevented from being reduced.

Referring to fig. 1, in some embodiments, the cooling assembly 100 includes a heat sink 40, the heat sink 40 being connected between the expansion tank 20 and the cooling plate 11.

The radiator 40 takes away the heat of the cooling liquid in the cooling plate 11, and the excess cooling liquid after heat dissipation flows into the expansion kettle 20.

The expansion kettle 20 can comprise a water inlet and a water outlet, the water outlet can be connected with the radiator 40 through a pipeline, the water inlet can be connected with the cooling plate 11 through a first pipeline 51, steam generated in the cooling plate 11 is guaranteed to overflow above the expansion kettle 20 along with cooling liquid entering the expansion kettle 20 through the water inlet, gas-liquid separation is achieved, gas in a waterway is removed, and gas resistance of the cooling liquid is eliminated.

In certain embodiments, the capacity of the power cell 10 is greater than 100kwh. When the capacity of the power battery 10 is greater than 100kwh, the capacity of the power battery 10 is large, and the heat generated during the charge and discharge of the power battery 10 is also large, so that the heat dissipation requirement of the power battery 10 is large, and more cooling liquid is needed, at this time, when the capacity of the expansion kettle 20 is fixed, the cooling liquid flows back into the expansion kettle 20 due to deformation of the cooling plate 11, and then the cooling liquid of the expansion kettle 20 is easy to overflow, so that the overflow kettle 30 can receive the cooling liquid overflowed from the expansion kettle 20.

For example, the power cell 10 capacity may be 110kwh, 120kwh, 130kwh, 140kwh, 150kwh, etc. In addition, the power batteries 10 with different capacities can adopt overflow kettles 30 with different volumes.

Referring to fig. 1, in some embodiments, the power battery 10 further includes a battery module 15, and the battery module 15 is connected to the cooling plate 11. In this way, the coolant in the flow channels 13 of the cooling plate 11 takes away the heat generated during the charge and discharge of the battery module 15.

Specifically, the battery module 15 may be formed by commonly packaging a plurality of battery cells or battery cells. The battery cells may include short or long pack cells, which may be one half or one third of the long pack cells. The battery module 15 may be attached to one surface of the cooling plate 11 in the thickness direction, or may be attached to both surfaces of the cooling plate 11 opposite to each other. One battery module 15 may correspond to one or more cooling plates 11.

Referring to fig. 1, in some embodiments, the number of battery modules 15 is plural, and a cooling plate 11 is disposed between two adjacent battery modules 15. Thus, both sides of the cooling plate 11 can radiate heat of the battery module, and thus, the utilization rate of the cooling plate 11 can be improved. In addition, the plurality of battery modules 15 may increase the capacity of the power battery 10.

Illustratively, when the number of battery modules 15 is 2, the number of cooling plates 11 is 1; when the number of the battery modules 15 is 3, the number of the cooling plates 11 is 2, and as the number of the battery modules 15 increases, the ratio of the number of the cooling plates 11 to the number of the battery modules 15 increases, and the cooling capacity is improved.

Referring to fig. 5, a vehicle 1000 in accordance with an embodiment of the present utility model includes a cooling assembly 100. In this way, the vehicle 1000 uses the overflow kettle 30 to receive the coolant overflowed from the expansion kettle 20, so that the coolant can be reduced or even prevented from overflowing from the expansion kettle 20 to other positions of the vehicle 1000, the damage to parts such as a high-low pressure loop of the vehicle 1000 is reduced, and the safety of the vehicle 1000 is improved.

It should be noted that the cooling module 100 of the present utility model may be applied to vehicles such as a pure electric vehicle, a hybrid vehicle, or an extended range vehicle.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cooling assembly, the cooling assembly comprising:

a power cell comprising a cooling plate;

the expansion kettle is connected with the cooling plate through a first pipeline and is used for receiving the cooling liquid overflowed from the cooling plate;

and the overflow kettle is connected with the expansion kettle through a second pipeline and is used for receiving the coolant overflowed from the expansion kettle.

2. The cooling assembly of claim 1, wherein the overflow jug is configured to be disposed at a right front wheel of a vehicle.

3. The cooling assembly of claim 1, wherein the overflow jug is disposed at a height less than a height of the expansion jug.

4. The cooling assembly of claim 1, wherein the cooling plate comprises a plurality of flow channel groups, the plurality of flow channel groups being arranged side-by-side in sequence, each flow channel group comprising a plurality of flow channels, the cooling fluid flow directions within the flow channels being the same.

5. The cooling module of claim 4 wherein adjacent two flow channel sets are in end-to-end communication via a converging channel.

6. The cooling assembly of claim 1, comprising a heat sink connected between the expansion tank and the cooling plate.

7. The cooling assembly of claim 1, wherein the power cell has a capacity greater than 100kwh.

8. The cooling assembly of claim 1, wherein the power cell further comprises a battery module, the battery module being coupled to the cooling plate.

9. The cooling assembly according to claim 8, wherein the number of the battery modules is plural, and the cooling plate is provided between two adjacent battery modules.

10. A vehicle comprising a cooling assembly according to any one of claims 1-9.